本文件适用于VOC和SVOC预期含量大于0.01%（质量分数）至100%（质量分数）的VOC和SVOC的测定。 ISO 11890中给出的方法- 当VOC大于15%（按质量计）时，使用1。本文件（方法ISO 11890-2）适用于系统含有VOC和SVOC时，因为ISO 11890-1的VOC结果可能会受到影响 由SVOC提供。对于VOC含量小于0.1%的情况，可采用ISO 17895中所述的顶空法。ISO 11890-1和ISO 17895不能用于测定 SVOC内容。 注1涂层材料及其原材料的某些成分在分析过程中会分解，产生人为的VOC和/或SVOC信号。测定VOC时 和/或SVOC对于涂层材料及其原材料，这些信号是该方法的人工制品，不予以考虑（示例见附录B）。 此方法假定 挥发性物质不是水就是有机物。然而，可能需要用另一种方法对无机化合物进行定量，并且可以用其他方法对其进行定量 在计算中。本文件规定的方法不适用于测定含水量。 注2:如果存在有机酸或碱及其相应的盐 在涂料或其原材料中，由于酸或碱平衡的变化，用这种方法定量的量可能不准确。

This document is applicable for the determination of VOC and SVOC with an expected VOC and/or SVOC content greater than 0,01 % by mass up to 100 % by mass. The method given in ISO 11890-1 is used when the VOC is greater than 15 % by mass. This document (method ISO 11890-2) applies when the system contains VOC and SVOC as the VOC result of ISO 11890-1 can be influenced by the SVOC. For VOC content smaller than 0,1 %, the head space method described in ISO 17895 is used as an alternative. ISO 11890-1 and ISO 17895 cannot be used for the determination of the SVOC content. NOTE 1 Some ingredients of coating materials and their raw materials can decompose during analysis and cause artificial VOC and/or SVOC signals. When determining VOC and/or SVOC for coating materials and their raw materials, these signals are artefacts of the method and are not taken into account (examples are given in Annex B). This method assumes that the volatile matter is either water or organic. However, other volatile inorganic compounds can be present and might need to be quantified by another suitable method and allowed for in the calculations. The method defined in this document is not applicable for determination of water content. NOTE 2 If organic acids or bases and their corresponding salts are present in the coating material or its raw materials, the amount that is quantified by this method might not be accurate due to a change in the acid or base equilibrium.